Tack-feeding device



Dec. 16, 1930. K. woLLNY 1,785,570

TACK FEEDING DEVICE l Filed June lO, 1929 2 Sheets-Shee l TACK FEEDING DEVICE Filed June lO. 1929 2 Sheets-5heet 2 Patented Dec. 16, 1930 UNITED STATES PATENT oFFlcE KARL WOLLNY, F WEISSEANFELS, 0. S., GERMANY, ASSIGNOR TO THE, FIRE j NOLLESCHE WERKE KOMM.GES., 015 WEISSENFELS, 0. S., GERHANY 'raox-rnnnme DEVICE Application led June 10, 1929, Serial No. 369,650, and in Germany January-1,. 1929.

This invention relates to-tack feeding de,- vices for lasting'machines having a slngle pair of pincers to which the boot. or shoe is presented progressively and comprises means j 1 another is placed in position for delivering tacks tothe said receptacle according to the size of tack desired.

In the present instance the invention is represented and described in connection with the machine of the United States Letters Patent No. 584,744, whereto reference is made for matters not herein fully set forth and described. The known machines of the kind referred to are equipped with a tack hopper comprising two compartments and two raceways leading therefrom so that two` sizes of tacks can be used, the short tacks being driven in at the shoe sidesand the longer ltacks being driven in at the toe and at the heel of the shoe.

the hopper and of filling with tacks o the size appropriate to the work just handled. This object is attained by arranging within the hopperfmore than two compartments and a corresponding number of raceways. Generally three compartments and three racef ways will suilice.- Of the three raceways marked a, b, c, either the raceways ab or bc or ac may be used.

' Another feature of the invention comprises a newl shifting device for the raceways allowing two raceways to be chosen out of "three to be ,used for the shoes handled.

f Other features of the inventionfincluding certain details of construction and combinations of parts, will be hereinafter described `Lof the tack Ihopperbn line C-D of Fig. 3.

" drop them into shoots h, i.

Fig. 3 isa horizontal section on line E-F of Fig. 2.

Figs. 4 to 13 show one construction and Figs. 14 to 17 a second construction of the shifting device.

` Figs. 4 and 5 show the position of the parts when the raceways ab or bc are used.

Fig. 6 shows the arrangement in elevation. l

Fig. 7 is a vertical section and Fig. 8 a plan of the shifting device.

Figs. 9 to 11 show different positions of the parts of the shifting device.

Figs. 12 and 13 are plans of the grooved discs 3, 4.

Figs. 14 to 17 show a simplified construction according to the invention.

The one-piece stationary tack drum v is provided with chambers r, s which are divided from each other and closed by end covers t, u. These end covers are mounted on indle e which is maintained in rotation 1n a suitable manner by gear wheels y', 'w from the machine drive. To the end covers t, u are lsecured blades f, g which lift the tacks and Between the chambers r, s isI arranged a third chamber c which is closed at the back by the cover Z. This cover Z is rotated by the cover u through the bevel wheel gear m, fw. Blades` n secured to the cover l are shown in Fig. 1.

-These blades raise the tacks from the bottom of the chamber k and drop them into the tack shoot o. The three drum chambers r, s and k contain tacks of different lengths.

The tacks slide from tack shoots h, 0,1' into raceways a, b, '0.

`Casing 9 which receives the tack raceways a, b, c may be turned about a pin 10 relatively to a fixed driving in conduit` 16 and is connected at the lower end b a ball joint to the rod 11,-the free end o which is biurcated and surrounds spindle 28.

To the spindle 28 is secured a sleeve 1 round which is rbtatable a cap 2 with a disc 3. Within the cap 2, on the hub 2 of the same, is loosely rotatable a disc 4.` To the cap A2 is secured a laterally projecting handle 12. Into the disc 4 is screwed abolt 6 on which is rotatably mounted a pawh. The latter engages with one ofthe twonoches 7 lon the rop Vtwo notches 8, 8 on the sleeve 1, s'o that the.

pawl 5 can engage at the same time also with one ofv the notches 8, 8. In that Way the position bf the two discs 3, 4 is jointly fixed.

The discs 3,\4 are provided with grooves 13, 14 which, according to the setting or adjustm'ent of the discs, overlap each other in a'difl'erent manner and may produce two ydiferently combined cam grooves according to Figs. 9 and 11|. They are shown cross hatched in the drawing and form a guide and push cam groove for the pin 15 which is secured to the rod 11. l

As is known, at each change of the tack condlit, which is eiected simultaneously with the change of the shoe stops 29, 30, the spindle 28 is given by the toothed quadrant 31 an oscillation in one or in the other direc tion to the extent of the angle d. It the'tvvo discs 3, 4 are so adjusted relatively to each other that they give the combined groove Vshownlin Figure 9, the pin 15 willbe in the left hand end position a of this groove when the tacks are being taken from the raceway a. On the spindle 28 being turned to the angle d, the pin 15 will ybe brou ht in the comblned roove to the position and will be move to the distance 1l and the raceway b will be brought in front of the driver guide 16, so thatthe tacks will be taken from the raceway b. With this first adjustment, the pin 15 assumes therefore alternately the positions a', b according to Fig. 9, and the tacks will be taken al;- ternately from the raceway-a or b.

If with the same relative position to each other, the discs 3, 4 are turned relatively to the spindle 28 into the position according to Fig. 10 and locked-by means of the notches 8', then on the spindle 28 being turned to the angled, the pin will be brought successively into the positions b c at the ends of the path 12. The tacks will be then taken from the-raceways b, c.

If thethird .possibility of the tack changing is to be utilized and if the tacksx are to be taken from the conduits a, c, the two discs 3, 4 are'turhed relatively to each other so that the combined groove shown inl Fig. 11 is produced. The discs 3, 4 thus set are vxed in the same way bythe engagement of the l pawl 5 with the notches 7 8. According to the position of the pin 15 at the beginning a or'fend c of thevsaid groove, the tacks of the raceway a or c will be used. The pin 15 makes here a radial movement of the extent 13.

It will be seen from the description that the attendant is easily able to make the adjustment without having to remove or to insertl tion according to the invention which should besatisfactory in many cases. In thiscon- I struction the casing 2 is done away with, and

nly one disc 4 is rovided which has a cam groove such as is s own crosshatched in Fig.- ure 9. The camdisc 4 can be connected by means of the pawl 5 in two different positions (see Fig. 15) to the spindle 28. The pin 15 l sity of emptying the tack drum and refilling with suitable tacks.

What I claim is:

1. In a tack-feeding device of a lasting machine, a tack-hopper three separate compartments within the hopper, a fixed conduit for the tacks to be driven, three raceways leading from the compartments of the hopper, means for aligning any of the raceways relatively to the. fixed conduit, and means for adjusting the aligning means to adapt them to successively align any selected two of the raceways with the fixed conduit.

2. In a tack-feeding device of a lasting machine, a tack-hopper, three separate compartments within the hopper, a fixed conduit forA the tacks to be driven, three raceways leading from the compartments of the hopper, means for aligning any of the raceways-lrelatively to the fixed conduit,.a cam moving the aligning means, means for moving the cam, and means for adjusting the relative position between the cam and its moving means to adapt the aligning means, to successively align any selected two of the raceways with the fixed conduit.

3. In a tack-feeding device of a lasting machine, a tack-hopper, three separate compartments within the hopper, a fixed conduit for the tacks to be driven, three `raceways leading from the compartments ofthe hopper, means for aligning any of the raceways relatively to the fixed'conduit, a cam moving the aligning means and formed by two superposed cam-discs, means for moving the cam, and means for adjusting the relative position of the superposedcam-discs to adapt the aligning means to successively align any selected two ofthe raceways with the fixed conduit. 4. In a tack-feeding device of a lasting machine, a tack-hopper, three separate compartments within t e hopper, three side covers for the said compartments provided with shovels for lifting and dropping the tacks within the compartments, means for rotating one of the covers, and means connected with this cover for rotating the other two covers.

In testimony whereof I afiix m signature.

KARL OLLNY. 

